4. What is the author's favonte type of calculation from blue nines

Ifound this on google “preview — long walk to freedom by nelson mandela. “i am fundamentally an optimist. whether that comes from nature or nurture, i cannot say. part of being optimistic is keeping one's head pointed toward the sun, one's feet moving forward.” i hope this you for what your looking for.

The lower class, the groundlings, paid the lowest amount. this is the answer for edgenuity